body {
    font-family: 'Arial', sans-serif;
    background: url('/img/timg2.png') no-repeat center center fixed;
    background-size: cover;
    color: #f5f5f5; /* 修改为柔和的浅灰色，避免太刺眼 */
    line-height: 1.6;
    padding: 0;
    margin: 0;
}
.card{
    background: rgba(0, 0, 0, 0.7); /* 更加柔和的透明黑背景 */
    border-radius: 15px; /* 更加圆滑的角 */
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(12px); /* 背景模糊效果 */
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    color: #bbbbbb;
    font-weight: bold;

}
.text-center{
    font-weight: bold;
}
.link{
    color: #2f80ed;
    font-weight: bold;

}